Improvement in imitating marble



UNITED STATES PATENT OFFICE.

HIRAM TUCKER, or CAMBRIDGE, MASSAoHUSETTS.

IMPROVEMENT |N- IMITATI NG MARBLE.

Specification forming part of Letters Pitent No. 8,420, dated October 14, 1851.

To aZZ whom itmay concern:

Be it known that I, HIRAM TUCKER, of Cambridge, in the county' of Middlesex and State of Massachusetts, have invented or discovered a new and useful process or mode of preparing colors and applying them upon glass or a transparent medium, for the purpose of imitating the appearance of polished marble or other stone; and I do hereby de' clare that the same is fully described in the following specification.

After Selecting the number of colors to be introduced into the picture, they are to be taken in a powdered or ground state and separately mixed with the painters oil or other suitable drying Vehicle until they are reduced to a thick or stiff paste or puttysuc-h as can be molded with the handsbut will readily adhere to glass by slight or a little pressure. Next, take several balls or pieces of Such paste of the different colors required and place them together or against one another, and by means of the hands, or by any other suitable means roll them together into a mass, but not to such an extent as to incorporate the colors into one uniform color, but simply to mix them together, so that one color may lie within and separate from or but partially mixed with another. The body of parti-colors so combined is next to be applied to one surfaceof a plate or piece of glass and pressed and spread out thereon by means of the fingers, or by any other suitable means. When so applied, they will present or can be made to present, through the glass the varied and irregular appearance of the colors of polished marble or various other mineral materials, and this is in a very perfect and natural manner.

A little practice in the application of colors to glass by the above-described process will enable a person to imitate with Surprising success or effect the colored appearance of most any polished marble or variegated mineral. By my process the most beautiful and costly marbles may be closely imitated at very small expense, so perfect being the appearance as to often render it difficult to ordinary eyes to distinguish the imitation from the real stone. p

In the manufacture of panels, table-tops, or various other articles my invention or discovery may be used to great advantage.

What I claim as my invention is- The process, substantially as described, of preparing and applying colors to glass or other suitable transparent medium, so as to imitate the veined orcolored appearance of polished marble or other mineral.

In testimony whereof I have hereto set my signature this 6th day of May, A. D. 1851.

HIRAM TUCKER.

Witnesses:

R. H. EDDY, J. O. DRURY. 

